CN114251604B - Pipeline risk assessment comprehensive management method and device based on online water quantity and water quality monitoring - Google Patents
Pipeline risk assessment comprehensive management method and device based on online water quantity and water quality monitoring Download PDFInfo
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- CN114251604B CN114251604B CN202111545780.4A CN202111545780A CN114251604B CN 114251604 B CN114251604 B CN 114251604B CN 202111545780 A CN202111545780 A CN 202111545780A CN 114251604 B CN114251604 B CN 114251604B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 238000012502 risk assessment Methods 0.000 title claims abstract description 78
- 238000007726 management method Methods 0.000 title claims abstract description 29
- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 239000010865 sewage Substances 0.000 claims abstract description 278
- 238000004880 explosion Methods 0.000 claims abstract description 76
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 9
- 208000006011 Stroke Diseases 0.000 claims description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 22
- 238000011156 evaluation Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The application relates to a comprehensive management method and a device for pipeline risk assessment based on online monitoring of water quantity and water quality, which belong to the field of pipeline risk management, and the method comprises the steps of carrying out risk assessment on sewage pipeline leakage based on an optical fiber sensor and a pressure sensor, and generating sewage pipeline leakage risk information; performing risk assessment on overflow risk of the sewage pipeline based on the water level gauge, and generating overflow risk information of the sewage pipeline; based on the gas concentration sensor and the temperature sensor, performing risk assessment on the gas explosion risk of the sewage pipeline, and generating information of the gas explosion risk of the sewage pipeline; positioning information of a pipeline area is obtained, and the positioning information is displayed on a map; and acquiring the sewage pipeline leakage risk information, the sewage pipeline overflow risk information and the sewage pipeline gas explosion risk information of the sewage pipeline in the pipeline area, and marking the corresponding pipeline area on the map. The application has the effect of improving the accuracy of the risk assessment of the sewage pipeline.
Description
Technical Field
The application relates to the field of pipeline risk management, in particular to a comprehensive management method and device for pipeline risk assessment based on online monitoring of water quantity and water quality.
Background
The sewage pipe network is an important component of urban infrastructure, and refers to a net structure formed by sewage pipes of one city or one region, and is used for intensively discharging sewage to a sewage treatment plant through the sewage pipes and treating the sewage by the sewage treatment plant.
Because sewage pipe network is in underground for a long time, the underground environment is more complicated, and the safety risk of sewage pipes is very easy to occur, the risk of sewage pipes is evaluated, active prevention is carried out before accidents occur, and the method has very important effect on maintaining urban underground environment.
The risk assessment of a sewer line is typically a sewer line leakage risk assessment, a sewer line overflow risk assessment and a sewer line gas explosion risk assessment.
The inventor considers that the current risk assessment of the sewage pipeline generally carries out qualitative analysis on risk factors affecting the safety of the sewage pipeline by years of experience of staff and advice of experts, namely, carries out rough risk assessment on the sewage pipeline according to public cognition and pipeline characteristics, and the obtained conclusion has uncertainty and lacks scientific guiding significance.
Disclosure of Invention
In order to improve the accuracy of the risk assessment of the sewage pipeline, an effective scientific basis is provided for the risk assessment of the sewage pipeline, and the application provides a comprehensive management method and device for the risk assessment of the pipeline based on online monitoring of water quantity and water quality.
In a first aspect, the application provides a pipeline risk assessment comprehensive management method based on online monitoring of water quantity and water quality, which adopts the following technical scheme:
a pipeline risk assessment comprehensive management method based on online water quantity and water quality monitoring comprises the following steps:
performing risk assessment on the leakage of the sewage pipeline based on a preset optical fiber sensor and a pressure sensor, and generating leakage risk information of the sewage pipeline;
performing risk assessment on overflow risk of the sewage pipeline based on a preset water level gauge, and generating overflow risk information of the sewage pipeline;
based on a preset gas concentration sensor and a temperature sensor, performing risk assessment on the explosion risk of the gas of the sewage pipeline, and generating information of the explosion risk of the gas of the sewage pipeline;
acquiring positioning information of a preset pipeline area, and displaying the positioning information on a preset map;
and acquiring the leakage risk information, overflow risk information and gas explosion risk information of the sewage pipeline of the pipeline area, and marking the map corresponding to the pipeline area.
By adopting the technical scheme, the risk assessment is carried out on the sewage pipeline through the optical fiber sensor, the pressure sensor, the water level gauge, the gas concentration sensor and the temperature sensor, and the manual judgment is converted into comprehensive analysis on the sewage pipeline through the sensor, so that scientific basis is provided for the risk assessment of the sewage pipeline, and the accuracy of the risk assessment of the sewage pipeline is improved;
and evaluating the leakage risk, overflow risk and gas explosion risk of the sewage pipeline of the preset pipeline area, and marking the leakage risk information, overflow risk information and gas explosion risk information of the sewage pipeline on a preset map, so that the comprehensive management of the leakage risk, overflow risk and gas explosion risk of the sewage pipeline of the preset pipeline area is facilitated.
Optionally, the step of performing risk assessment on the leakage of the sewage pipeline based on the preset optical fiber sensor and the pressure sensor and generating risk information of the leakage of the sewage pipeline includes:
acquiring wall thickness information detected by a preset optical fiber sensor;
acquiring preset water pressure information monitored by a pressure sensor;
based on the wall thickness information and the water pressure information, the sewer leakage risk is classified into high risk, medium risk and low risk.
By adopting the technical scheme, the risk of leakage of the sewage pipeline is divided into two dimensions for evaluation, namely, the risk of leakage of the sewage pipeline is divided into high risk, medium risk and low risk through wall thickness information and water pressure information, so that the risk of leakage of the sewage pipeline is conveniently managed, and meanwhile, the accuracy of risk evaluation of the sewage pipeline is also improved.
Optionally, the step of classifying the sewer piping leakage risk into high risk, medium risk and low risk based on the wall thickness information and the water pressure information includes:
judging whether the wall thickness information is lower than a preset wall thickness threshold value or not;
if yes, judging that the leakage risk of the sewage pipeline is high;
if not, judging whether the water pressure information is higher than a preset water pressure threshold value;
if yes, judging that the leakage risk of the sewage pipeline is a stroke risk;
and if not, judging that the leakage risk of the sewage pipeline is low.
By adopting the technical scheme, if the wall thickness information is lower than the wall thickness threshold value, judging that the leakage risk of the sewage pipeline is high, if the wall thickness information is higher than the wall thickness threshold value, the water pressure information is higher than the water pressure threshold value, then the risk that the water pressure in the sewage pipeline causes the leakage of the sewage pipeline is high, judging that the leakage risk of the sewage pipeline is medium, if the wall thickness information is higher than the wall thickness threshold value, judging that the leakage risk probability of the sewage pipeline is low, and judging that the leakage risk probability of the sewage pipeline is low.
Optionally, the step of performing risk assessment on the overflow risk of the sewage pipeline based on the preset water level gauge and generating the overflow risk information of the sewage pipeline includes:
acquiring water level information detected by a preset water level gauge;
based on the water level information, the sewer overflow risk is classified into high risk and low risk.
By adopting the technical scheme, the overflow risk of the sewage pipeline is judged through the water level information and is divided into high risk and low risk, so that the overflow risk degree of the sewage pipeline is visually seen by staff, the overflow risk assessment of the sewage pipeline is convenient to manage, and the accuracy of the overflow risk assessment of the sewage pipeline is improved.
Optionally, the step of dividing the sewer overflow risk into high risk and low risk based on the water level information includes:
judging whether the water level information is higher than a preset water level threshold value or not;
if yes, judging that the overflow risk of the sewage pipeline is high;
and if not, judging that the overflow risk of the sewage pipeline is low.
By adopting the technical scheme, the overflow risk of the sewage pipeline is judged by taking the water level information as the judging condition, if the water level information is higher than the water level threshold value, the overflow risk of the sewage in the sewage pipeline is indicated to be high, and if the water level information is lower than or equal to the water level threshold value, the sewage pipeline can normally discharge sewage, and the overflow risk of the sewage pipeline is judged to be low.
Optionally, the step of performing risk assessment on the gas explosion risk of the sewage pipeline based on the preset gas concentration sensor and the temperature sensor and generating the gas explosion risk information of the sewage pipeline includes:
acquiring flammable gas concentration information monitored by a preset gas concentration sensor;
acquiring temperature information detected by a preset temperature sensor;
based on the flammable gas concentration information and the temperature information, the sewage conduit gas explosion risk is classified into high risk, medium risk, and low risk.
Through adopting above-mentioned technical scheme, judge sewage pipeline's gas explosion risk through inflammable gas concentration and interior temperature of sewage pipeline to divide into high risk, well risk and low risk with sewage pipeline gas explosion risk, be favorable to improving the accuracy of sewage pipeline gas explosion risk assessment simultaneously to managing sewage pipeline gas explosion risk assessment.
Optionally, the step of dividing the sewage pipeline gas explosion risk into high risk, medium risk and low risk based on the flammable gas concentration information and the temperature information includes:
judging whether the flammable gas concentration information falls into a preset flammable gas concentration range or not;
if yes, judging that the explosion risk of the sewage pipeline gas is low;
if not, judging whether the temperature information is lower than a preset temperature threshold value;
if yes, judging that the gas explosion risk of the sewage pipeline is a stroke risk;
and if not, judging that the explosion risk of the sewage pipeline gas is high.
By adopting the technical scheme, if the concentration value of the inflammable gas in the sewage pipeline is lower than the concentration threshold value of the inflammable gas, the gas explosion risk in the sewage pipeline is lower, namely the gas explosion risk of the sewage pipeline is judged to be low; if the concentration value of the flammable gas in the sewage pipeline is greater than or equal to the concentration threshold value of the flammable gas, and the temperature information in the sewage pipeline is lower than the temperature threshold value, judging the explosion risk of the gas in the sewage pipeline as a medium risk; if the concentration value of the inflammable gas in the sewage pipeline is larger than or equal to the concentration threshold value of the inflammable gas, the temperature information in the sewage pipeline is larger than or equal to the temperature threshold value, the probability of gas explosion in the sewage pipeline at the moment is low, and the gas explosion risk of the sewage pipeline is judged to be high. The concentration and the temperature of the inflammable gas in the sewage pipeline are used as the conditions for judging the explosion risk assessment of the gas in the sewage pipeline, and the explosion risk of the gas in the sewage pipeline is divided into high risk, medium risk and low risk, so that the accuracy of the explosion risk assessment of the gas in the sewage pipeline is improved.
Optionally, after the step of determining that the risk of explosion of the sewage pipeline gas is high, the method includes:
acquiring position information of a sewage pipeline;
and generating alarm information and displaying the position information and the alarm information on a display screen.
Through adopting above-mentioned technical scheme, when judging that sewage pipeline gas explosion risk is high risk, through showing positional information and alarm information on the display screen this moment, be favorable to the background staff to in time sparse the crowd of sewage pipeline gas explosion risk for the position department of high risk through alarm information and positional information, reduce loss of property, protection personal safety.
Optionally, after the step of obtaining the sewage pipeline leakage risk information, the sewage pipeline overflow risk information and the sewage pipeline gas explosion risk information of the sewage pipeline of the preset pipeline area, the marking corresponding to the pipeline area on the map includes:
acquiring water quality information of sewage treated by a sewage treatment plant monitored by a preset water quality monitor;
judging whether the pH value of the water quality information falls into a preset pH value range;
if not, controlling a preset water quality sampler to sample the sewage water sample, and displaying the water quality information on a display screen.
By adopting the technical scheme, the water quality monitor is used for monitoring the water quality information of the sewage treated by the sewage treatment plant, judging whether the sewage treated by the sewage treatment plant reaches the emission standard or not through the water quality information, and if the sewage does not reach the emission standard, collecting a sewage sample through the water quality sampler, so that workers can analyze the water quality components in the sample conveniently, and providing a basis for the sewage treatment scheme.
In a second aspect, the application provides a pipeline risk assessment integrated management device based on online monitoring of water quantity and water quality, which adopts the following technical scheme:
the pipeline risk assessment integrated management device based on the water quantity and water quality on-line monitoring comprises a memory and a processor, wherein the memory stores a pipeline risk assessment integrated management method program, and the processor is used for adopting the pipeline risk assessment integrated management method based on the water quantity and water quality on-line monitoring when executing the program.
In summary, the application has at least one of the following beneficial effects:
1. and evaluating the leakage risk of the sewage pipeline, the overflow risk of the sewage pipeline and the gas explosion risk of the sewage pipeline, marking the leakage risk information of the sewage pipeline, the overflow risk information of the sewage pipeline and the gas explosion risk information of the sewage pipeline on a preset map, and facilitating comprehensive management of three kinds of sewage pipeline risk evaluation.
2. The sewage pipeline leakage risk is divided into high risk, medium risk and low risk through the wall thickness information and the water pressure information, so that the sewage pipeline leakage risk assessment is convenient to manage, and workers can timely process the sewage pipeline leakage condition through the sewage pipeline leakage risk.
3. The overflow risk of the sewage pipeline is divided into high risk and low risk through the water level information, so that the overflow risk assessment of the water leakage pipeline is convenient to manage.
4. The sewage pipeline gas explosion risk is divided into high risk, medium risk and low risk through inflammable gas concentration information and temperature information, so that the sewage pipeline gas explosion risk assessment is convenient to manage, and workers can timely process according to the sewage pipeline gas explosion risk.
Drawings
Fig. 1 is an overall flowchart of a pipeline risk assessment integrated management method based on online monitoring of water quality and quantity according to an embodiment of the present application.
Fig. 2 is a flowchart of dividing the leakage risk of a sewage pipeline into high risk, medium risk and low risk based on wall thickness information and water pressure information in a pipeline risk assessment integrated management method based on online water quality monitoring according to an embodiment of the present application.
Fig. 3 is a flowchart of dividing the explosion risk of the sewage pipeline gas into high risk, medium risk and low risk based on the concentration information and the temperature information of the inflammable gas in the pipeline risk assessment integrated management method based on the online monitoring of the water quantity and the water quality according to the embodiment of the application.
Detailed Description
The embodiment of the application discloses a comprehensive management method for pipeline risk assessment based on online monitoring of water quantity and water quality.
Referring to fig. 1, a method for comprehensively managing risk assessment of a pipeline based on online monitoring of water quantity and water quality includes:
and S100, performing risk assessment on the leakage of the sewage pipeline based on a preset optical fiber sensor and a pressure sensor, and generating leakage risk information of the sewage pipeline.
The leakage of the sewage pipeline is mainly subjected to risk assessment through an optical fiber sensor and a pressure sensor, wherein the optical fiber sensor is used for detecting the wall thickness of the sewage pipeline, and the pressure sensor is used for detecting the water pressure of sewage in the sewage pipeline.
Specifically, based on a preset optical fiber sensor and a pressure sensor, performing risk assessment on the leakage of the sewage pipeline, and generating leakage risk information of the sewage pipeline comprises the following steps:
s101, acquiring wall thickness information detected by a preset optical fiber sensor;
in a specific implementation, an optical fiber sensor can be arranged at a specified distance according to the length of the sewage pipeline, the optical fiber sensor is arranged on the outer side wall of the sewage pipeline and connected with a central control host through an electric wire, and a plurality of optical fiber sensors form a sensor network and are used for monitoring the wall thickness of the whole sewage pipeline, and the optical fiber sensors transmit detected wall thickness information to the central control host.
S102, acquiring preset water pressure information monitored by a pressure sensor.
The pressure sensor adopts a wireless pressure sensor, and in one embodiment, the wireless pressure sensor actively uploads detected water pressure information to the central control host through the GPRS module; in another embodiment, the wireless pressure sensor uploads the detected water pressure information to the intelligent gateway through the 433M wireless module, and then the intelligent gateway transmits the water pressure information to the central control host in a wired mode.
S103, based on the wall thickness information and the water pressure information, the leakage risk of the sewage pipeline is divided into high risk, medium risk and low risk.
The sewage pipe leakage risk mainly depends on the thickness of the sewage pipe wall and the water pressure of sewage in the sewage pipe, so the sewage pipe leakage risk is evaluated based on the wall thickness information and the water pressure information in two dimensions, and is classified into high risk, medium risk and low risk.
Specifically, referring to fig. 2, the step of classifying the sewage pipe leakage risk into high risk, medium risk and low risk based on the wall thickness information and the water pressure information includes:
s103a, judging whether the wall thickness information is lower than a preset wall thickness threshold value;
in this embodiment the sewer line is a reinforced concrete pipe, in particular a reinforced concrete pipe having a nominal inner diameter of typically 500mm and a wall thickness of 50mm. The wall thickness threshold refers to a wall thickness threshold for a sewer line break.
S103b, if yes, judging that the leakage risk of the sewage pipeline is high;
based on the step S103a, for example, the wall thickness threshold is set to be 5mm, the wall thickness information of the sewage pipeline measured by the optical fiber sensor is set to be 4.7mm, and the risk of leakage of the sewage pipeline is judged to be high because of 4.7mm <5mm, and at this time, the leakage probability of the sewage pipeline is high and the sewage pipeline needs to be repaired as soon as possible.
S103c, if not, judging whether the water pressure information is higher than a preset water pressure threshold value;
based on step S103a, if the wall thickness information detected by the optical fiber sensor is 15mm, since 15mm >5mm, it indicates that the wall thickness information is higher than the wall thickness threshold, and at this time, the water pressure information in the sewage pipeline is compared with the preset water pressure threshold.
S103d, if yes, judging that the leakage risk of the sewage pipeline is a middle risk;
based on the steps S103a, S103b and S103c, for example, if the water pressure threshold is set to 0.5Mpa, the water pressure information in the sewage pipe detected by the pressure sensor is set to 0.8Mpa, and the water pressure information in the sewage pipe exceeds the water pressure threshold because of 0.8Mpa >0.5Mpa, and at this time, the risk of leakage of the sewage pipe is determined to be a medium risk based on the condition that the wall thickness of the sewage pipe is higher than the wall thickness threshold and the water pressure information in the sewage pipe exceeds the water pressure threshold.
And S103e, if not, judging that the leakage risk of the sewage pipeline is low.
Based on step S103d, for example, if the water pressure information in the sewage pipe detected by the pressure sensor is 0.3Mpa, the water pressure of the sewage pipe is relatively low at this time due to 0.3Mpa <0.5Mpa, and meanwhile, the probability of leakage risk of the sewage pipe is low due to the fact that the wall thickness information is higher than the wall thickness threshold value, so that the leakage risk of the sewage pipe is judged to be low at this time.
Specifically, the sewage pipeline leakage risk assessment table is shown in the following table:
| wall thickness information | Hydraulic pressure information | Risk of leakage in sewer |
| Less than the wall thickness threshold | Above/below a water pressure threshold | High risk |
| Greater than the wall thickness threshold | Above the water pressure threshold | Risk in |
| Greater than the wall thickness threshold | Below the water pressure threshold | Low risk |
And S200, performing risk assessment on the overflow risk of the sewage pipeline based on a preset water level gauge, and generating overflow risk information of the sewage pipeline.
In the prior art, the overflow of the sewage pipeline is that the inflow of the sewage pipeline exceeds the transportation or treatment capacity of the sewage pipeline, so that the running water level of the sewage is too high, the sewage overflows, and the water level gauge is used for detecting the water level in the sewage pipeline.
Specifically, based on a preset water level gauge, performing risk assessment on overflow risk of the sewage pipeline, and generating overflow risk information of the sewage pipeline includes:
s201, acquiring water level information detected by a preset water level gauge;
in a specific implementation, the water level gauge is installed in the water inlet pipeline of the sewage pipeline.
S202, based on water level information, the overflow risk of the sewage pipeline is divided into high risk and low risk.
The overflow risk of the sewage pipeline is divided into high risk and low risk through the water level information detected by the water level meter, the accuracy of overflow risk assessment of the sewage pipeline is improved, and workers can timely treat overflow of the sewage pipeline when the overflow risk of the sewage pipeline is at high risk, so that the probability that the surface environment is damaged due to overflow sewage is reduced.
Specifically, the step of classifying the sewer overflow risk into a high risk and a low risk based on the water level information includes:
s202a, judging whether the water level information is higher than a preset water level threshold value;
the water level threshold value means that the water inflow of the sewage pipeline is equal to the water outflow at the moment, namely, the sewage is in a critical state which can not be discharged in time, and the overflow risk of the sewage pipeline is judged by comparing the water level information with the water level threshold value.
S202b, if yes, judging that the overflow risk of the sewage pipeline is high;
based on step S202a, for example, the water level threshold is set to be 70cm, the water level information detected by the water level gauge is set to be 85cm, and the water level information detected by the water level gauge is higher than the water level threshold because of 85cm >70cm, and at this time, the overflow risk of the sewage pipeline is determined to be a high risk.
And S202c, if not, judging that the overflow risk of the sewage pipeline is low.
Based on step S202a, if the water level information detected by the water level gauge is 60cm,60cm <70cm, which indicates that the discharge amount of the sewage pipeline is higher than the water inflow amount at this time, the overflow risk of the sewage pipeline is determined to be low.
And S300, performing risk assessment on the gas explosion risk of the sewage pipeline based on a preset gas concentration sensor and a preset temperature sensor, and generating information of the gas explosion risk of the sewage pipeline.
The explosion risk of the gas in the sewage pipeline is mainly determined by the concentration and the temperature of the inflammable gas in the sewage pipeline, so that the concentration of the inflammable gas in the sewage pipeline is detected by a gas concentration sensor, the temperature in the sewage pipeline is detected by a temperature sensor, and the gas concentration sensor and the temperature sensor are used for carrying out risk assessment.
Specifically, based on a preset gas concentration sensor and a temperature sensor, performing risk assessment on the gas explosion risk of the sewage pipeline, and generating gas explosion risk information comprises the following steps:
s301, acquiring flammable gas concentration information monitored by a preset gas concentration sensor;
in the sewage pipeline, the inflammable gas component is mainly methane, and the gas concentration sensor adopts an inflammable gas concentration sensor for detecting the concentration of alkane gas in the sewage pipeline.
S302, acquiring temperature information detected by a preset temperature sensor;
the temperature sensor is used for detecting the temperature in the sewer line, in this embodiment an NTC temperature sensor is used.
S303, dividing the explosion risk of the sewage pipeline gas into high risk, medium risk and low risk based on the inflammable gas concentration information and the temperature information.
In a specific implementation, the explosion of the gas in the sewage pipeline is mainly determined by the concentration of the flammable gas in the sewage pipeline and the temperature of the sewage pipeline, and the explosion risk of the gas in the sewage pipeline is estimated through the concentration of the flammable gas and the temperature information.
Specifically, referring to fig. 3, the step of classifying the explosion risk of the sewage pipe gas into high risk, medium risk and low risk based on the flammable gas concentration information and the temperature information includes:
s303a, judging whether the flammable gas concentration information falls into a preset flammable gas concentration range;
the concentration range of the inflammable gas refers to the value of the concentration range of the inflammable mixture formed by the inflammable gas and the air, the main component of the inflammable gas in the sewage pipeline is methane, and the concentration range of the inflammable gas causing the explosion of the methane is 5% -15%, so that the concentration range of the inflammable gas is 5% -15%, and if the concentration of the methane in the sewage pipeline is out of the preset concentration range of the inflammable gas, the methane has no explosion risk.
S303b, if yes, judging that the explosion risk of the sewage pipeline gas is low;
based on step S303a, if the methane concentration detected by the gas concentration sensor is 17%, since the 17% methane concentration is not located within the flammable gas concentration range of 5% -15%, there is no explosion risk, but the 17% concentration is higher than the highest limit concentration of methane explosion, so there is a risk of methane combustion, and in practice, sufficient attention should be paid when the detected flammable gas concentration is higher than the highest limit concentration of flammable gas explosion.
S303c, if not, judging whether the temperature information is lower than a preset temperature threshold value;
based on step S303a, if the measured concentration of the flammable gas is within the flammable gas concentration range, that is, the measured concentration of the flammable gas is set to be 8%, at this time, the temperature information detected by the temperature sensor is compared with a temperature threshold, the temperature threshold refers to the limit temperature when the flammable gas explodes, and the temperature threshold is set to be 20 ℃.
S303d, if yes, judging that the gas explosion risk of the sewage pipeline is a stroke risk;
based on step S303c, if the temperature information detected by the temperature sensor is 15 degrees celsius, the methane concentration in the sewage pipeline is located in the flammable gas concentration range at the moment because the temperature is 15 degrees celsius and is less than 20 degrees celsius, and the temperature is lower than the temperature threshold value, which indicates that the sewage pipeline has the risk of gas explosion at the moment, and the risk of gas explosion in the sewage pipeline is judged to be a middle risk because the temperature is lower.
And S303e, if not, judging that the explosion risk of the sewage pipeline gas is high.
Based on step S303c, if the temperature information detected by the temperature sensor is 25 ℃, the methane concentration is also within the flammable gas concentration range because the temperature information is 25 ℃ and 20 ℃ and is higher than the preset temperature threshold, and at this time, the gas explosion risk in the sewage pipeline is determined to be high.
Specifically, the sewage pipeline gas explosion risk evaluation table is shown in the following table:
| concentration of flammable gas | Temperature information | Risk of explosion in sewer |
| Outside the concentration range of flammable gas | Above/below a temperature threshold | Low risk |
| In the concentration range of inflammable gas | Below the temperature threshold | Risk in |
| In the concentration range of inflammable gas | Above a temperature threshold | High risk |
Specifically, after the step of judging that the risk of explosion of the sewage pipeline gas is high, the method comprises the following steps:
s303f, acquiring position information of the sewage pipeline;
in this embodiment, the position information of the sewage pipeline adopts a GPS positioning system, specifically, a GPS receiver is used to position the gas concentration sensor, after the central control host determines that the gas explosion risk of the sewage pipeline is high risk, the GPS positioning of the gas concentration sensor is obtained, in order to ensure the strength of the signal received by the receiver, in the implementation, the GPS receiver should be installed on the ground above the corresponding gas concentration sensor, i.e. the position of the sewage pipeline where the gas concentration sensor is located directly below the position where the GPS receiver is positioned.
S303g, generating alarm information and displaying the position information and the alarm information on a display screen.
The central control host generates alarm information and displays the position information on the display screen, so that the staff can respond in time, and people in the relevant area can be evacuated in time according to the displayed position information.
S400, acquiring positioning information of a preset pipeline area, and displaying the positioning information on a preset map.
In a specific implementation, the acquisition of positioning information of the pipe area utilizes GPS technology. The sewage pipeline in a certain area can be divided into different pipeline areas for management, each area is provided with a GPS receiver, the GPS receivers are used for receiving GPS signals of satellites, positioning is carried out on the pipeline area where the GPS receivers are located, positioning information is transmitted to a map of a central control host for display, and workers can manage different pipeline areas conveniently.
S500, obtaining sewage pipeline leakage risk information, sewage pipeline overflow risk information and sewage pipeline gas explosion risk information of the sewage pipeline of the pipeline area, and marking the corresponding pipeline area on a map.
The GPS receiver displays the positioning information on a map, the central control host acquires the sewage pipeline leakage risk information, the sewage pipeline overflow risk information and the sewage pipeline gas explosion risk information of the underground sewage pipeline in the pipeline area, and displays the corresponding pipeline area on the map, so that workers can intuitively see that the sewage pipeline risk appears in a certain pipeline area, and the sewage pipeline risk is processed in time.
Specifically, after the steps of obtaining the sewage pipeline leakage risk information, the sewage pipeline overflow risk information and the sewage pipeline gas explosion risk information of the sewage pipeline of the preset pipeline area and marking the corresponding pipeline area on the map, the method comprises the following steps:
s600, acquiring water quality information of sewage treated by a sewage treatment plant monitored by a preset water quality monitor;
the water quality monitor is used for monitoring the PH value of the treated sewage, and in theory, the PH value range of the treated sewage is 6-9. In the embodiment, an online water quality monitor is adopted, and in one embodiment, the water quality monitor transmits the collected water quality information to a central control host through GPRS; in another embodiment, the water quality monitor transmits the collected water quality information to the central control host computer through an optical fiber in a wired manner.
S700, judging whether the PH value of the water quality information falls into a preset PH value range;
if the water quality information falls within a preset pH range, the sewage can be normally discharged, and if the water quality information does not fall within the pH range, the sewage does not reach the normal discharge standard.
S800, if not, controlling a preset water quality sampler to sample the sewage water sample, and displaying the water quality information on a display screen.
Based on the step S700, the preset pH range is 6-9, if the water quality monitor monitors that the pH value of the sewage is 5 and 5 does not fall into the preset pH range, the sewage is indicated to not reach the normal discharge standard, at the moment, the central control host controls the water quality sampler to sample, so that the staff can conveniently test the sampling information, and a sewage discharge improvement scheme is provided for the sewage treatment plant according to the test result. Specifically, the water quality sampler adopts a water quality automatic sampler.
The embodiment of the application relates to a pipeline risk assessment comprehensive management method based on online water quantity and quality monitoring, which comprises the following implementation principles: performing risk assessment on the leakage of the sewage pipeline based on the optical fiber sensor and the pressure sensor; performing risk assessment on overflow of the sewage pipeline based on a water level gauge; based on the gas concentration sensor and the temperature sensor, risk assessment is carried out on the gas explosion risk of the sewage pipeline, and risk information corresponding to the three kinds of risk assessment of the sewage pipeline is displayed on a map, so that scientific basis is provided for the risk assessment of the sewage pipeline, and comprehensive management is carried out on leakage risk assessment of the sewage pipeline, overflow risk assessment of the sewage pipeline and gas explosion risk assessment of the sewage pipeline.
The embodiment of the application also discloses a comprehensive management device for pipeline risk assessment based on online monitoring of water quantity and water quality.
The pipeline risk assessment integrated management device based on the water quantity and water quality on-line monitoring comprises a memory and a processor, wherein the memory stores a pipeline risk assessment integrated management method program, and the processor is used for adopting the pipeline risk assessment integrated management method based on the water quantity and water quality on-line monitoring when executing the program.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. The comprehensive management method for the pipeline risk assessment based on the online monitoring of the water quantity and the water quality is characterized by comprising the following steps:
performing risk assessment on the leakage of the sewage pipeline based on a preset optical fiber sensor and a pressure sensor, and generating leakage risk information of the sewage pipeline;
acquiring wall thickness information detected by a preset optical fiber sensor;
acquiring preset water pressure information monitored by a pressure sensor;
dividing the sewer leakage risk into a high risk, a medium risk and a low risk based on the wall thickness information and the water pressure information;
performing risk assessment on overflow risk of the sewage pipeline based on a preset water level gauge, and generating overflow risk information of the sewage pipeline;
acquiring water level information detected by a preset water level gauge;
dividing the overflow risk of the sewage pipeline into a high risk and a low risk based on the water level information;
based on a preset gas concentration sensor and a temperature sensor, performing risk assessment on the explosion risk of the gas of the sewage pipeline, and generating information of the explosion risk of the gas of the sewage pipeline;
acquiring flammable gas concentration information monitored by a preset gas concentration sensor;
acquiring temperature information detected by a preset temperature sensor;
dividing the sewage pipeline gas explosion risk into high risk, medium risk and low risk based on the inflammable gas concentration information and the temperature information;
judging whether the flammable gas concentration information falls into a preset flammable gas concentration range or not;
if yes, judging that the explosion risk of the sewage pipeline gas is low;
if not, judging whether the temperature information is lower than a preset temperature threshold value;
if yes, judging that the gas explosion risk of the sewage pipeline is a stroke risk;
if not, judging that the gas explosion risk of the sewage pipeline is a high risk;
acquiring positioning information of a preset pipeline area, and displaying the positioning information on a preset map;
acquiring the leakage risk information, overflow risk information and explosion risk information of the sewage pipeline of the pipeline area, and marking the map corresponding to the pipeline area;
acquiring position information of a sewage pipeline;
and generating alarm information and displaying the position information and the alarm information on a display screen.
2. The integrated management method for pipeline risk assessment based on online monitoring of water volume and quality according to claim 1, wherein the step of classifying the leakage risk of the sewage pipeline into high risk, medium risk and low risk based on the wall thickness information and the water pressure information comprises the steps of:
judging whether the wall thickness information is lower than a preset wall thickness threshold value or not;
if yes, judging that the leakage risk of the sewage pipeline is high;
if not, judging whether the water pressure information is higher than a preset water pressure threshold value;
if yes, judging that the leakage risk of the sewage pipeline is a stroke risk;
and if not, judging that the leakage risk of the sewage pipeline is low.
3. The integrated management method for pipeline risk assessment based on online monitoring of water quantity and water quality according to claim 1, wherein the step of dividing the overflow risk of the sewage pipeline into high risk and low risk based on the water level information comprises the steps of:
judging whether the water level information is higher than a preset water level threshold value or not;
if yes, judging that the overflow risk of the sewage pipeline is high;
and if not, judging that the overflow risk of the sewage pipeline is low.
4. The comprehensive management method for pipeline risk assessment based on online monitoring of water quantity and water quality according to claim 1, which is characterized by comprising the following steps: the steps of obtaining the sewer leakage risk information, the sewer overflow risk information and the sewer gas explosion risk information of the sewer of the pipeline area, and marking the corresponding pipeline area on the map include:
acquiring water quality information of sewage treated by a sewage treatment plant monitored by a preset water quality monitor;
judging whether the PH value of the water quality information falls into a preset PH value range;
if not, controlling the water quality sampler to sample the sewage water sample, and displaying the water quality information on a display screen.
5. Pipeline risk assessment integrated management device based on water yield quality of water on-line monitoring, its characterized in that: comprising a memory storing a pipeline risk assessment integrated management method program and a processor for employing any of the methods of claims 1-4 when the program is executed.
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| CN115435249B (en) * | 2022-11-07 | 2023-03-24 | 广东广宇科技发展有限公司 | Underground sewage quality and sewage pipeline cooperative monitoring method |
| CN116401963B (en) * | 2023-06-08 | 2023-10-27 | 海纳云物联科技有限公司 | Method, device, electronic equipment and system for predicting gas explosion probability |
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